diff --git a/src/extensions.jl b/src/extensions.jl
index 9a43dc5..72dcca1 100644
--- a/src/extensions.jl
+++ b/src/extensions.jl
@@ -59,8 +59,13 @@ tags[:unionall] = d -> UnionAll(d[:var], d[:body])
 lower(x::Vector{Any}) = copy(x)
 lower(x::Vector{UInt8}) = x
 
-reinterpret_(::Type{T}, x) where T =
-  T[reinterpret(T, x)...]
+function reinterpret_(::Type{T}, x) where T
+  len = Int(length(x) * (sizeof(eltype(x)) / sizeof(T)))
+  GC.@preserve x begin
+    return unsafe_wrap(Array, Ptr{T}(pointer(x)), len)
+  end
+end
+
 
 function lower(x::Array)
   ndims(x) == 1 && !isbitstype(eltype(x)) && return Any[x...]